I have a Rheem HVAC classic 90 plus that will not light.

Asked Oct 2, 2011, 12:33 PM
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2 Answers

I have a Rheem HVAC classic 90 plus that will not light. I clean the igniter with a piece of sand paper, but it still won't light. The top light of three won't light up neither. I had water go up about 16 inches up from the bottom of the furnace.

You are going to have to give a little more info for me to be able to help much. As far as the lights on the control board, the wiring diagram on the inside of the blower door should give you a code for the led lights that are on the board. Then, if you can tell me what is happening (detailed as possible) when you turn the thermostat to call for heat, then maybe I can point you in the right direction

The pilot light on my furnace went out & I can't figure out how to relight it. It did it a few months ago & my ex (who wasn't my ex at the time) found the instructions & easily got it going again. Since the weather was good I had the thermostat off for about a month just like I always do. Now it is...

For the last month or so my two year old Rheem 90 Classic model #RCGA-36A2GG21XI condensing furnace keeps cycling on for a minute, the flame lights up, the fan comes on and then it turns off. A minute later the same thing happens for about 5 times. Then all of a sudden it works fine. A couple of...

I have a Rheem HVAC classic 90 that will not light
The electronic igniter will not lit the burners
I have changed the igniter and still will not work
I can light the burners with a match but when it gets to temperature it will not light for the next cycle